Car-wheel



(No Model.) I

R 11. ALLEN. F i GAR WHEEL. v V

N 293.211. Patented Feb. 12,1804. 4

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RICHARD N. ALLEN, OF CLEVELAND, OHIO.

CAR-=WHEEL.

SPECIFICATION forming partof Letters Patent No. 293,211, dated February12, 1884.

Application filed July 528, 1853. (No model.)

connection with the hub, forms the body ofthe wheel. In thatconstruction parts of the cen tral plate, near its periphery, wereformed and arranged to fit into corresponding parts upon the inner edgeof the tire, thereby constituting claimed in said patent.

the tongue-and groove lock described and In the present invention thetire is secured to the central plate by the use of an additionaltongue-and-grooveloek formed upon an inwardly-projecting annular web ofthe tire, and the face of the central plate, and by bolts or rivetspassing through the web of the tire and the central plate.

The invention is illustrated in the accompanying drawings, inwhichFigure l is a central cross-section of a car-wheel containing myimprovement, and Fig. 2 is a view in elevation of the inner side or faceof the same.

In the drawings, T represents the tire of the wheel, which is providedwith an annular web, 10, projecting toward the center of the wheel, suchweb being provided witha laterally-projecting annular tongue, 25,preferably located near its periphery. The inner edge of the tire isalso provided with an annular tongue or projection, a, and an annulargroove, 9.

P represents the central plate, and H the hub of the wheel, whichpreferably form a single piece or casting, and may be forged fromwrought-iron or cast from iron or steel. The plate P, near itsperiphery, is provided with a tongue and groove to correspond with thetongue a and groove 9 upon the inner edge of the tire, and it is alsoprovided-upon its outer face with a groove, 6, to correspond with thetongue t upon the web of the tire. The web 10 is preferably locatednearer the outer than the inner edge ofthe tire, so as to leave awidehearing for the tire upon the periphery of the central plate, and theouter face of the central plate opposite the web is preferably recessedenter and fit into the groove b in the central,

plate, and the tongue and groove upon the in nor edge of the tire willengage with the corresponding tongue and groove of the central plate atits. periphery, forming two tongue and-groove locks, while the peripheryof the central'plate and the inner face of the tire are in contact fromthe web to the inner edge of the tire, as fully shown in the drawings.-

It is obvious that in place of the lock formed upon the web of the tireand the central plate,

as hereinbefore described and shown in the drawings, an equivalent lockmight beformed by a tongue projecting laterally from the face of thecentral plate and entered into a groove in the web of the tire. centralplate have been brought together, as above described, they are firmlyunited by a series of bolts, (2, passed through the web 1g and the plateP near its periphery. To compensate for the weakening of the plate atthis part by the bolt-holes, as well as to give it additional strengthto resist the blows communicated through the tire, a series of bosses orre-enforcements, 6, equal in number to the bolts, may be formed upon theinner face of theplate P, throughwhich the holes are bored;

After the tire and the ing the metal of the plate near the tire andboring the bolt'holes through such thickened part. l

Instead of bolts d, a series of rivets may be used to unite the tire andthe central plate.

The construction of the tire and the body of the wheel are so related toeach other that the tire can be forced into place upon the periphery ofthe central plateby hydraulic or other requisite pressure, thecorresponding tongues and grooves in each part being so located andconstructed to make close joints.

From the above description it is readily seen and the periphery of thecentral plate be sinr' that a new tire can be easily and quicklysubstituted for a broken or worn one by simply removing the bolts orrivets, forcing the old tire off and a new one on, and replacing thebolts.

If desired, the lock upon the inner edge of the tire and the centralplate maybe omitted,

ply extended out flush, or nearly so, with the inner edge of the tire.In such construction the lock upon the web of the tire and the face ofthe central plate will greatly lessen the liability and danger that thebolts or rivets would be sheared or cut off between the web and thecentral plate in case the tire should become broken; but I prefer todouble lock the tire to the central plates, as shown in thedrawings.

I am aware that English Patent No. 1,098 of March 25, 1875, shows aconstruction of wheel in some respects similar to that herein described.A careful examination of said patent, however, indicates that said wheelbelongs to the class of spoke-wheels, and is very unlike the plate-wheelherein described and claimed, it being, like its class, provided with afelly to which both the spokes and the tire are secured, while the wheelherein described has its tire secured directly to its central plate.

The wheel of the said English patent also employs a supplemental ringfor securing the tire to the felly, and it has no tongue-and-groove lookby which a web projecting from the tire is united to the outer face of acentral plate,

(or to the felly in the English wheel,) which tongue-and-groove locks,one formed upon the web and the outer face of the central plate, and theother upon the central plate and the inner edge of the tire, and bybolts passed through the central plate and the web of the tire.

2. A' car-wheel composed of a hub, a single central plate, and a tireprovided with an inwardly-projecting web, in which the tire is securedto the central plate by a tongue-andgroove lock formed upon the web ofthe tire and the outer face of the central plate, and by bolts passedthrough the central plate and the web of the tire.

RICHARD N. ALLEN.

Witnesses: I

FREDERICK S. SMITH, O. P. BEAUMONT.

